/* ===== Design tokens ===== */
:root {
  --ink: #14161c;
  --muted: #555b68;
  --faint: #878d9b;
  --accent: #2f54eb;       /* royal blue */
  --accent-deep: #1f3bb3;
  --accent-2: #0d9488;     /* teal */
  --accent-soft: #eaeefe;  /* light blue chip bg */
  --accent-soft2: #e0f5f1; /* light teal chip bg */
  --rule: #e9eaee;
  --card-border: #e6e7ec;
  --bg: #ffffff;
  --max: 880px;
  --font: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 56px 0;
}

/* ===== Sticky nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav-name {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.nav-name:hover { text-decoration: none; color: var(--accent); }
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}
.nav-links a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--accent); text-decoration: none; }

/* ===== Hero ===== */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  margin: 40px 0 8px;
  padding: 44px 44px;
  border-radius: 18px;
  background:
    radial-gradient(120% 140% at 0% 0%, #eef2ff 0%, rgba(238,242,255,0) 55%),
    radial-gradient(120% 140% at 100% 100%, #e2f5f1 0%, rgba(226,245,241,0) 55%),
    #f7f9fc;
  border: 1px solid #eef0f6;
}
.hero-text { flex: 1 1 auto; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 14px;
}
.hero-name {
  font-weight: 800;
  font-size: 56px;
  line-height: 1.05;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}
.hero-intro {
  font-size: 17.5px;
  color: #2c2f38;
  max-width: 56ch;
  margin: 0 0 20px;
}
.hero-links { font-size: 15px; margin: 0; font-weight: 500; }
.hero-links .dot { color: var(--faint); margin: 0 9px; }

.hero-photo { flex: 0 0 auto; }
.hero-photo img {
  width: 188px;
  height: 226px;
  object-fit: cover;
  border-radius: 12px;
  border: 3px solid #fff;
  box-shadow: 0 10px 30px rgba(20, 30, 80, 0.14);
  display: block;
}

/* ===== Section headings ===== */
section h2 {
  font-weight: 800;
  font-size: 30px;
  margin: 0 0 26px;
  letter-spacing: -0.02em;
  padding-bottom: 12px;
  position: relative;
}
section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

/* ===== Experience / Education entries ===== */
.entry { margin-bottom: 32px; }
.entry:last-child { margin-bottom: 0; }
.entry-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.org {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin: 0;
}
.meta-right {
  font-size: 13px;
  color: var(--faint);
  font-weight: 500;
  white-space: nowrap;
  margin: 0;
}
.role {
  font-weight: 700;
  font-size: 18px;
  margin: 4px 0 10px;
}
.gpa { color: var(--accent-2); font-weight: 700; margin: 0 0 8px; font-size: 15px; }
.course { font-size: 15px; color: var(--muted); margin: 0; }
.course strong { color: var(--ink); }
.entry ul {
  margin: 0;
  padding-left: 20px;
}
.entry li {
  margin-bottom: 6px;
  font-size: 15.5px;
  color: #30343d;
}

/* ===== Project cards ===== */
.card {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 24px 26px;
  margin-bottom: 18px;
  background: #fff;
  transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}
.card:hover {
  box-shadow: 0 10px 30px rgba(20, 30, 80, 0.08);
  transform: translateY(-2px);
  border-color: #d3d9f5;
}
.tags { margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-2);
  background: var(--accent-soft2);
  padding: 4px 10px;
  border-radius: 6px;
}
.tag.primary { color: var(--accent-deep); background: var(--accent-soft); }
.card h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}
.card-meta {
  font-size: 14px;
  color: var(--faint);
  font-weight: 500;
  margin: 0 0 12px;
}
.card p { font-size: 15.5px; color: #30343d; }
.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.metrics {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.links { display: flex; gap: 10px; }
.btn {
  display: inline-block;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 7px 15px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; text-decoration: none; }
.btn.ghost { color: var(--muted); }
.btn.ghost:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }

/* ===== Skills grid ===== */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.skill-card {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 18px 20px;
  background: #fff;
}
.skill-cat {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 12px;
}
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; }
.badges span {
  background: #f3f5f9;
  border: 1px solid #eceef3;
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 13px;
  font-weight: 500;
  color: #2c3140;
}

/* ===== Contact / footer ===== */
.contact-line { font-size: 16px; color: var(--muted); margin: 0 0 14px; }
.site-foot {
  margin: 64px 0 48px;
  color: var(--faint);
  font-size: 13px;
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 680px) {
  body { font-size: 16px; }
  .hero {
    flex-direction: column-reverse;
    align-items: flex-start;
    padding: 28px 24px;
    gap: 22px;
  }
  .hero-name { font-size: 40px; }
  .hero-photo img { width: 120px; height: 146px; }
  .nav-links { gap: 13px; }
  .nav-links a { font-size: 11.5px; }
  .skills-grid { grid-template-columns: 1fr; }
  section h2 { font-size: 26px; }
  hr { margin: 40px 0; }
}